Do well to become advanced (3,2)
I believe the answer is:
get on
'do well' is the definition.
'become advanced' is the wordplay.
'become' becomes 'get' ('get' can be a synonym of 'become').
'advanced' becomes 'on' (I am not sure about this - if you are sure you should believe this answer much more).
'get'+'on'='GET ON'
'to' is the link.
Can you help me to learn more?
(Other definitions for get on that I've seen before include "Make progress or mount up" , "Board (a bus)" , "Age; prosper" , "Make progress or climb aboard" , "Agree - embark - make progress" .)